Water-jacket for heaters.



I. PI SNIYTHE. WATER JACKET FOR HEATERS.

APPLICATION FILED JULY 3, I9I4.

Patented Dec. 14, 1915.

2 SHEETS-SHEET l.

j. P. SMYTHE. WATER JACKET FOR HEATERS.

APPLICATION FILEDJULY 3.1914.

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Patented Dec. 14, 1915.

2 SHEETS-SHEET 2.

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JONATHAN P. SMYTHE, QF WASHINGTON, DISTRICT OF COLUMBIA.

WATER-JACKET FOR HEATERS.

Specicaton of Letters Patent.

Patented Deo. 1.4i, 1915.

Application led July 3, 1914. Serial No. 848,942.

To all whom t may concern Be it known that I, JONATHAN P. SMYTHE, a citizen of the United States, residing at Washington, in the District of Columbia, have invented new and useful Improvements n Vater-Jackets for Heaters, of which the following is a specification.

The invention relates to water heaters, and more particularly to the class of hot water heaters or water jackets therefor.

The primary object of the invention is the provision of a jacket wherein cold water will be caused to circulate in columns therein so that these columns will be subjected to the heat from the burner of the heater for preheating the water before consumption thereof through the spigot in the ordinary well-known manner, certain of the columns of water being disposed directly in the path of the flames from the burner when lighted, thereby insuring the quick heating of the water on its admission to the water jacket with a resultant minimum use of fuel for this purpose.

Another object of the invention is the provision of a water jacket wherein the water circulating spaces are arranged in a novel manner therein so that cold water will first flow in one direction in the jacket, and thence in a reverse direction within the said jacket for the pre-heating of the water prior to consumption thereof, and in this manner the condensation of the atmospheric water on the inside of the jacket is eliminated, and thereby avoids the formation of acid water with resultant corrosive action on the walls or metals within the casing.

A further object of the invention is the provision of a water jacket of this character wherein the construction thereof is of novel form so as to direct the water entering the heater and divide it into inner and outer columns, the outer column of water serving to sustain the jacket cool at the outer wall thereof, while the inner columns of water will be subjected to the heat from the burner or bui'ners for the pre-heating thereof before circulating through the inner system, the inner columns of water being circulated in a manner to receive lthe full heating effect from the burner or burners for the quick heating of the water prior to its leaving the heater.

A still further object of the invention is the provision of a water jacket of this character wherein the inner water courses therein cause the water to circulate in the direction of the path of the heat from the burner or burners so as to be constantly subjected thereto for the pre-heating of the water through the water-ways in the casing.

A still further object of the invention is the provision of a water jacket of this character which is extremely simple in construction, thoroughly reliable and efficient in its purpose, strong, durable, and inexpensive in manufacture. i W'ith these and other objects in view, the invention consists in the construction, combination and arrangement of parts as will be hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereunto appended.

In the drawings: Figure l is a vertical longitudinal sectional view through a heater constructed in accordance with the invention. Fig. 2 is a sectional view on the line 2-2 of Fig. l. Fig. 3 is a sectional view on the line 3 3 of Fig. 1.

Similar reference characters indicate corresponding -parts throughout the several views in the drawings.

Referring to the drawings in detail, the heater' comprises a cylindrical casing 5 which may be of any desirable length, preferably constructed from metal, and has fitted on its lower end a casting forming a water inlet ring 6 provided with an externally depending annular flange 7 over which is telescoped a burner housing 8 supported upon legs 9, while fitted to the upper end of the casing 5 is a dome or crown l0 formed with a central chimney or liue nipple ll provided with outlet apertures l2 circumferentially thereof. lNithin the dome or crown 10 and spaced therefrom is a lining 13, the same being held in its spaced relation to the dome or crown through the medium of spacer disks 14 having passed therethrough rivets l5 which are also passed through the domo 4or crown and lining for uniting the same together. The dome or crown 10 is mounted upon a top ring 16 which is fitted upon the upper end of the casing 5 and is fastened Vthereto in any suitable manner.

Arranged interiorly of the casing 5 is a cylindrical inner wall or lining 17 forming a water Jacket, whichis spaced from the said casing to provide a water space 18 therebetween, the' saidlining 17 being-extendedv longitudinally within the casing throughout the length thereof so that the water space 1 8 will be coextensive with the casing. This lining .17' at its 'oppositev end is connected' with respective flanges 20 and '21 4formed on,

the top and bottom rings at the ends of ythe casing, the lining being bent at'intervals throughout its length to form hollow annuspaced from the lower ring 6, the free ends of the partitions being formed with re- Yersely bent centering ears at right angles thereto which are adapted to engage the walls next thereto for positioning the partitions and 24 in spaced relation to each other and also with respect to the casi" ing 5 and lining 17 so as to form independent water passages therebetween. The ears 25 permit the passage ot' water from one independent course to the other within the casing oi' the heater.

Formed on the ring G is a water inlet nipple 26 so that water will be admitted to the said ring at the outer side of the partition 23 and will rise in the space between the casing 5 and the outermost partition 23, Vthen will How over the upper free edge ot' the outer partition 23 downwardly through the space between the said outer and inner partitions 23 and 24 and over the lower free edge of the partition 24, and thence upwardly between the latter and the lining 17 toward the upper end of the casing, whence the said water will circulate in a manner presently described.

Formed on the upper ring 16 are a series of radially arranged connecting tubes 27 which are disposed in the same plane with each other and are directed toward the center of the said ring 1G and have downturned nipples 28 at their inner ends, and to these ends is connected a hollow spider 29, to-the outer ends of the. radial arms of which are fixed depending water circulating legs 30, while engaged in thenipples 28 are tubes 31, the latterbeing extended centrally through the legs 30 and have their lower ends terminating spaced from the lowermost closed extremities Vofthe said legs so that water will be admitted-from the upper ring 16 into the tubes 31 downwardly therethrough and intoA the legs-30, whence the water will flow upwardly without the said tubes 31 into the spider 29, the legs 30 each being formed at intervals with external hollow ribs 32 and a hollow terminalhead 33, the latterbeing spaced from and in alineinent with the burner 34, which may be of any approvedtorm, and arranged within the burner housing 8 of the casing so that the heatfrom the said burner 34 will play directly upon the legs 30 for the heating of the water circulating therethrough.

The spider 29 has centrally connected thereto a thermostatic rod receiving tube 35 in which is adapted to be arranged a suit able valve operated therinostatic rod, (not shown), the tube 35 being extended downwardly and forming an-outlet for the water circulated within the casing and heated prior to its delivery to the house system. Arranged co-axially about the tube 35 which extends downwardly centrally within the casing tothe lower end thereoiI is a spaced tubular water leg 3G having a restricted lower end 3T embracing the tube 35 and closing the said lower end of the'leg, while passed through the Lipper' end of the said leg 36 and extended downwardly centrally between the latter and the tube 35 is a tubular partition 38, theY saine at its upper end being connected to the said tube within the spider 29, the connected end of the partitionv38 being cut to form openings 39 establishing communication between the hollow spider and the water circulating space 40 between the tube 35 and the partition 38, so that the water from the spider will flow downwardly'in said space 40 and thence upwardly through the leg 36 in the space 41 between it and the partition 38, the tube 35 and partition 38 being fitted with nipples 49 for establishing communication between the leg 36 and the tube 35 at the Lipper end of the said leg so that water flowing upwardly through the space 41 will pass through the nipples 42 through the tube 35, for its discharge to the house system, the discharge being automatically controlled through suitable valve mechanism acted upon the therinostatic rod arranged within the said tube 35, the upper end ot' the leg 3G being secured to the partition 38 directly above the nipples 42 in any suitable manner, while the partition 38 is passed through a stutling box 43 foi-ined centrally on the spider 29 and has its upper end suitably secured to the tube 35 so ioo lio'- that the partition will depend centrally from f Y ing serve to increase the area of the heating surfaces thereof which are projected into the path of the products of combustion of the burner 34 for the heating of the water within the casing during the circulation of the said water after entering the same. These ribs in addition serve to deiiect or retard the products of combustion throughout the path thereof to the chimney or flue.

The lower free end of the partition 38 within the center leg 36 is luted or perforated at Llso as to not obstruct the free passage of the water from the space 40 into the space 41, whereby the water w1ll iow downwardly from the spider 29 on the inner side of the partition 38, and thence upwardly on the outer side thereof within the leg 36, and iinally the said water will be discharged into the tube 85 for its delivery to the house system.

The central chimney or flue nipple 11 of the casing has fitted thereon a flanged hood ring 46 which is located directly above the apertures 12 in the said nipple, and forms a guard to retard the inrush of air through the apertures 12 into the dome or crown of the casing.

In the operation of the heater, the water entering the water ring and casingthrough the nipple 26 is cold, and the same is caused to pass upwardly through the water .jacket between^ the casing 5 and the partition 23 so that the outer wall of the casing is maintained cool. The water, afterl rising in the space 18 flows downwardly between the partitions 23 and 24- from the upper end of the casing to the lower end thereof, and thence upwardly between the partition 24 andthe lining 1T, whence it enters the connect1ons 2T where it is distributed downwardly through the tubes 31 into the legs 30. The water rises within the legs without the tubes 31 for entrance into the spider 29, whence the same flows downwardly in the space 40 between the tube 35 and partition 38, and iinally rises within the central leg 36 for its discharge through the nipples 42 into the tube 35 where it is delivered therefrom to the house system for consumption. During the circulation of the water within the casing of the heater the same is primarily preheated in the casing, thence heated to a higher degree in the legs, and finally heated to the temperature desired prior to its delivery to the house system, and by reason of the novel form of construction of the casing the use of a heating coil is obviated. Furthermore, the condensation of atmospheric water on the metal parts within the casing and the lining thereof is practically eliminated, and the circulating water within the said casingisheated by the heat radiated and lost through the casing of the heaters of this type as ordinarily constructed. It is of course' to be understood that if found desirable a single water leg may be employed should the occasion require, and this is contemplated within the bounds of the invention.

It is of course to be understood that changes, variations and modifications may be made such as come properly within the scope of the appended claims without departing from the spirit of the invention or sacrificing any of its advantages.

F rom the foregoing description, taken in connection with the accompanying drawings, it is thought that the construction, and manner of operation of the device will be clearly understood, and therefore a more extended explanation has been omitted.

What is claimed is 1. In a water heater, a casing, a wall spaced from and interiorly of said casing to form a water jacket coextensive therewith, inwardly directed hollow annular ribs formed from the wall at intervals thereof, water rings communicating with the jacket at its top and bottom, and co-axially arranged spaced partitions in the casing, one being fixed to the upper ring and the other fixed to the lower ring to provide an uninterrupted circuitous water course in the jacket leading from one of the rings.

2. In a water heater, a casing, a wall spaced from and interiorly of said casing to form a water jacket coextensive therewith, inwardly directed hollow annular ribs formed from the wall at intermals thereof, water rings communicating with the jacket at its top and bottom, coaxially arranged spaced partitions in the casing, one being fixed to the upper ring and the other fixed to the lower ring to provide an uninterrupted circuitous water course in the casing leading from one of the rings, and a water leg interiorly of the casing and disposed directly in the path of the heat from a heat generator and having communication with the jacket at a remote point of the initial flow of water from one of the said rings.

3. In a water heater, a casing, a wall spaced from and interiorly of said casing to form a water jacket coextensive therewith, inwardly directed hollow annular ribs formed from the wall at intervals thereof, water rings communicating with the jacket at its top and bottom, co-axially arranged spaced partitions in the casing, one being iixed to the upper ring and the other fixed to the lower ring to provide an uninterrupted circuitous water course in the casing leading from one of the rings, a water leg interiorly of the casing and disposed directly in the path of the heat from a heat generator and having communication with the jacket at a remote point of the initial flow of water from one of the said rings,

IIO

and a bank of hollow Water legs wtlin the In testimony whereof I ax 'my signature body directly in the path of a heat generator in presence of two witnesses.

and having means for causing Water to be JONATHAN P. SBYTHE. delivered from the jacket and to reversely Witnesses:

loW in co-axally arranged columns in said BENNETT S. JONES,

legs. FRANK O. PARKER.

Oopes of this patent may be obtained for ve cents each, by addressing the Commissioner of Iaten'cs,`

Washington, D. C. 

